Improvement in machines for bending sheet-metal for cornices



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Letters Patent No. 95,650, dated October` 12, 1869.

IMPROVEMENT IN'A MACHINESI'OR BENDING- SHEET-METAL FOR 'CORNICE S, Bcc.

The Schedule referred toin these Letters Patent and making part of the same To all lwhom fit may concern:

Beit known that we, O. A. BU'rrLEs and DENNIS MURPHY, of Milwaukee, in the county of Milwaukee, and' State of Wisconsin, have invented .certain new and useful Improvements in Machines for Bending, Folding, or Shaping Sheet-Metal into Gornices or other shapes or forms; and we do hereby declare the following to be a full, clear, and exact description of the construction and operation Aof the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 represents a perspective view of the machine;

Figures 2 and 3 represent vertical transverse sections through the machine; and

Figure 4 represents, detached from the machine, one of the attachable and removable formers used, .at times, for shaping cornices, Src.

Similar letters of reference, where they occur in the separate iigures, denote like parts of the machine in all of them.

We are aware that there a're machines used for folding and bending sheet-metal, and, of course, lay no claim to any such machines in general, but only our construction of machine,4 which 'is adaptable to bending or shaping metal cornice, mouldings, or other similar things, used in architecture; and

, Our invention consists in a machine composed essentially of a brake, clamp, hinged folding or' bending wings, and removable, changeable, or auxiliary formers, for making the 'shorter bends or members of such cornice or other similarly shaped or bent article.

To enable others skilled inthe art to make and use `our invention, we will proceed to describethe same,

with reference to the drawings.

A repre ents a bed, supported on legs B, or otherwise, on w ich is supported a clamping-bar o r head, C, by means ofthe lugs a a, &c., on said bed.

In a cage, b, made on each end of the clamping-bar or head C, there is placed a cam or eccentric, c, which is worked bya lever, d, said cam or eccentric being pivoted to the lugs a a, byA a pin or journal, c.

By rolling these cams on their axes, by means of their perspective levers, the head oi clamping-bar is raised, lowered, and held, as the operation may require, and anything placed between the head and bed of the machine may be rigidly held vor clamped there, whilst the projecting portion or portions of it may be4 bent v or shaped, as will be explained.

To each side of the bed-piece A', and at or near each of its ends, there is hinged the wing-formels D E, which have levers, f, connected with them, so that they may be swung or moved on their hinges,vand

brought up into a vertical, or nearly so, position against the bed and clamp-pieces. v

These wings D E may be formed, as shown in tig,l 2, of' plane surfaces, or. as shown in fig. 3, they, may have partially plane and partially rounded or concave suifaces. f

In tig. 2 we have shown certain removable vor auxiliary appliances, which are used for making small members of a cornice or moulding; that to the left of fig. 2, and shown in red lines, is a' half-roundand held to the top edge of the wing D by dowel pins in the half-round, as shown at g, tig. 4, which take into suitable holes in said wing.

O11 the other wing, E, a ipiece, h., may be attached yin a similar way, except that its dowel-pins go in horizontally, and into holes formed in said wing.

The piece h is of an angular or L-form', and bot-h of'A 'these pattern-pieces g h are removable or replaceable, or others of dierent forms or outlines may be substituted for them, so that cornice 'of different forms lmay be made on one machine.

The machine may be made light and portable, and when somade, the bed and clamp, one orA both, may be trussed, as at Ii, to make them rigid,or, for heavier Y or stronger machines, they may be made `of solid met-al.

f The wings D E can-be used with or without the auxiliary pieces or patterns g h, and this, too, whether the wings, as in fig. 3, have a portion of the contour of the cornice patternon it or not, as in iig. 2.

A The' sheet-metal to be operated upon is placed properly on the bed, ther clamp or head brought down tight upon it, to hold it firmly, then the wing is raised up by its levers, and gives a bend or form to the projecting portion of the sheet, corresponding to that of the wing or its appendage, and forms one ofthe members of the cornice. Then, by rearranging, reclamping, 'andagain bending, by the same or the other wing, .another bend, form, or member is added, and so on. f

In making short bends or curves, the distance between which is less than the width of the clamp, and that cannot be conveniently done lbetween the clamp and bed,'the wing E of the pair may be raised up into a horizontal, or nearly so, position, and the sheet to be bent or shaped inserted vertically between said wing and-the bed. The wing is then let down, which clamps the sheet, and the latter may thenv be bent over the wing or the former thereon.

To facilitate this operation, a part of the folder or foi-mer, or both, may be removable, or the hinges, by which the folder is hung tothe bed, so arranged as that it will swing the folder far enoughv out to readily admit the sheet between itself and the bed piece. f

Having thus fully deseribed our invention, able pattern-pieces g h, or their substitutes, for form What we claim therein as new, and desire to secure Iing the smaller members of cornice, substantialiy as by Letters Patent, is herein described.

1. In a. machine for bending `sheet-metal cornice, O. A. BUTTLES. the combination of the bed, clamp, and hinged wings D. MURPHY. or sides D E, arranged and operating in the manner herein described and represented.

2. Also, in combination with the bed, clamp, and hinged wings or side-pieee's, the removable and replace- Witnesses:

E.. H. LAY, TL. B. JUNEAU.

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